[models] Add new AbstractState enumeration
Add (de-)serialisation support for AbstractState
[jpa] orm.xml: Add AbstractStateConverter
[model+js+service] Abstract: -{approved, published} +state

Convert to enumeration based state mechanism
Merge pull request #79 from asobolev/master

smallest conference Page

LGTM
Merge pull request #78 from gicmo/AbstractStates

Convert Abstract to enum based state

LGTM
new Accounts controller with public method that requests accounts by email
Merge branch 'andrey'